freebsd-dev/lib/libdisk/disklabel.c
Poul-Henning Kamp aded89c1b1 This is a revision 0.00 of the backend stuff for the fdisk/disklabel stuff
in the new sysinstall.  If you want to give a helping hand, then send email
to phk@FreeBSD.ORG.  DO NOT COMMIT TO THIS DIRECTORY!
1995-04-28 23:57:04 +00:00

34 lines
857 B
C

/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@login.dknet.dk> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
* ----------------------------------------------------------------------------
*
* $Id$
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <err.h>
#include <sys/disklabel.h>
#include "libdisk.h"
struct disklabel *
read_disklabel(int fd, daddr_t block)
{
struct disklabel *dp;
dp = (struct disklabel *) read_block(fd,block);
if (dp->d_magic != DISKMAGIC)
return 0;
if (dp->d_magic2 != DISKMAGIC)
return 0;
if (dkcksum(dp) != 0)
return 0;
return dp;
}